OBD Mary is a powerful and versatile EOBD/OBD-II car diagnostic scanner, gauge dashboard, and trip computer packed with features. It's more than just a simple code reader; OBD Mary allows you to read and clear OBD-II trouble codes (DTCs) and perform diagnostics on various vehicle ECUs, including ABS, SRS (Airbag), HVAC, and more.

OBD Mary boasts extensive vehicle compatibility, supporting a wide range of makes and models, including Acura, Alfa Romeo, Alpina, Audi, BMW, BYD, Buick, Cadillac, Changan, Chery, Chevrolet, Chrysler, Citroen, Dacia, Daewoo, Daihatsu, Daimler, Datsun, Dodge, DS, Exeed, Fiat, Ford, Geely, General Motors, Genesis, GMC, Great Wall, Haval, Holden, Honda, Hummer, Hyundai, Infiniti, ISUZU, JAC, Jaguar, Jeep, JMC, Kia, KTM, Lada, Lancia, Land Rover, Lexus, Lifan, Lincoln, Lotus, Mahindra, Mazda, McLaren, Mercedes-Benz, Mercury, MG, Mini, Mitsubishi, Nissan, Opel, Peugeot, Pontiac, Porsche, Proton, RAM, Range Rover, Ravon, Renault, Rivian, Rolls-Royce, Rover, Saab, Samsung, Scion, Seat, Skoda, Smart, SsangYong, Subaru, Suzuki, Toyota, Vauxhall, Volkswagen, and Volvo.

Important Notes:

1. You'll need an ELM327 Bluetooth or Wi-Fi adapter to connect OBD Mary to your vehicle.
2. Your vehicle may have multiple ECUs; remember to check all of them for a comprehensive diagnosis.
3. ELM adapter version 1.5 is generally recommended; version 2.1 adapters can sometimes be problematic.

Quick Start Guide:

1. Download the OBD Mary app.
2. Plug your ELM327 adapter into your vehicle's 16-pin diagnostic connector.
3. Turn your ignition ON.
4. Discover your Bluetooth ELM adapter in your Android device's settings.
5. Select the discovered ELM327 adapter within the app's settings.
6. Connect!

Diagnostics Features:

Read and reset trouble codes from OBD-II compliant control units. Access detailed fault code descriptions and easily search online for more information. View freeze-frame data for activated DTCs. Monitor live parameters such as speed, RPM, MAF, and coolant temperature.

Customizable Dashboard:

Create a personalized gauge dashboard with fully customizable gauges. Adjust sizes, colors, positions, labels, and backgrounds to your liking. Easily resize and reposition gauges using your fingers in edit mode.

Trip Computer Functionality:

Keep the ELM327 adapter connected to continuously track your trips. Log data including trip time, fuel consumption, fuel cost, average speed, maximum speed, and more.

Full Version:

Purchase the full version of OBD Mary to unlock all features and remove ads. Your purchase directly supports future development and maintenance. Thank you for your support!

Contact Us:

Feel free to contact us via the in-app contact button or email.

What's New in Version 1.251 (November 10, 2024)

• Added gauge templates to the Dashboard
• Added more OBD-2 parameters
• Fixed several bugs